Cutting tool insert



FIG. 1 is an isometric view of a cutting tool insert, in accordance with the subject invention;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front side elevational view thereof;

FIG. 5 is a rear side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a cutting tool insert, as shown and described. 